[OS X TeX] Large Figure in Document? (and slow response of TeXShop)
bb at creativeeyes.at
Tue Nov 22 12:25:41 CET 2005
On 22.11.2005, at 12:19, Piet van Oostrum wrote:
>> JS> Piet, I saved the figures still into eps format, but
>> JS> used JPEG compression to reduce the size. Do you mean that I
>> should go
>> JS> (original) eps -> PNG -> eps?
> The JPEG compression introduces the fuzziness, at least in diagrams
> sharp lines and edges, unless you set the quality to 100%. With lower
> quality it is more suited for photographic material or similar.
>>>>>> Bernhard Barkow <bb at creativeeyes.at> (BB) wrote:
>> BB> PNG compression is not supported in EPS format, as far as I
>> know, but you
>> BB> can choose "Compression: None" or "RLE" (lossless) in
>> BB> (Options... in the Save As-dialog). The file size will be
>> BB> larger than with JPEG, but still reasonable, I assume. Make
>> sure to first
>> BB> select the appropriate color depth if you don't need full
>> color, since
>> BB> this will affect file size in that case (contrary to using
>> JPEG) (Menu:
>> BB> Picture / Colors / Grayscale / 4 Grays, for example).
> Postscript level 3 has Flate Encoding which is the same compression
> that PNG
> Imagemagick's convert command can generate compact eps files from PNG.
> Officially this should be done with the -compress zip option, but I
> smaller files with -compress LZW, like this:
> convert -compress LZW pict.png eps2:pict.eps or
> convert -compress LZW pict.png eps2:pict.eps
> This uses LZW encoding, however, instead of Flate. You need an
> compiled with LZW (this should pose no problems nowadays as the LZW
> has expired).
> Also bmeps is said to convert to Flate encoding.
> See Compressed Images in PostScript and PDF with LaTeX HOWTO
Very interesting links, thanks!
_________________________________ Bernhard Barkow __
___________________ gpg key ID _ A89F09C45921020D __
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